asynchronous I/O memory lock permissions file
The Asynchronous I/O (AIO) facility allows a system
administrator to specify certain privileged users who are allowed
to lock a piece of physical memory for AIO usage. The
aiomemlock file is read by the
utility to set up the AIO locking permissions.
Each entry in aiomemlock specifies a user's login
name and the total amount of memory which they may
Specifying a value of 0 (zero) for amount disables
any locking for that user. If there is more than one entry for
the same user, the second entry overrides the first.
Comment lines have a number sign (#) as the first character.
The super user can lock memory whether or not root has an entry in the
The following entry allows user lucy to lock slightly less
than 4MB of memory. This is the maximum total shared among
all processes running with the same UID as lucy.
Memory locked by a user is removed from the general free
memory pool. Allowing locks should be done with care; for
example, locking 4MB on an 8MB system
would severely degrade multiuser performance.
definitions for asynchronous I/O
permissions file to control how much memory can be locked by whom
command to lock physical memory for AIO transfers
command to print statistics on AIO usage
© 2003 Caldera International, Inc. All rights reserved.
SCO OpenServer Release 5.0.7 -- 11 February 2003